ﷺ
During the Mi'raj, Allah Almighty initially granted the Holy Prophet (peace and blessings be upon him) 50 prayers for every day and night. Through the intercession of the Holy Prophet (peace and blessings be upon him), and at the suggestion of Sayyiduna Musa (peace be upon him) who spoke from his own experience with Bani Isra'il, the number was reduced in stages until Allah Almighty said: 'O Muhammad! There are five prayers in every day and night, and the reward of every prayer is tenfold — thus they are like fifty prayers.'
Journey Beyond The Heavens · 22 · Maktaba tul Madina
Awaiting scholar review